CVEvulnerability
CVE-2019-10691
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-04-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 7.5 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Description
The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username.
Affected configurations
• dovecot dovecot (< 2.3.5.2)
• opensuse leap 15.0
References
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/04/18/3 Mailing List, Third Party Advisory
- https://dovecot.org/list/dovecot-news/2019-April/000406.html Mailing List, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/201908-29 security.gentoo.org
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/04/18/3 Mailing List, Third Party Advisory
- https://dovecot.org/list/dovecot-news/2019-April/000406.html Mailing List, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/201908-29 security.gentoo.org